Angel Shifters series by Erin M. Leaf

Erin M. Leaf is a romance novel devotee, the steamier the better, with a specialty in edgy erotic tension. She also writes romance under the pen name Marie E. Blossom.

Genre: Erotic Paranormal Romance

1. Angel's Honor (MM):

Raphael never believed the Omega angel myth could be real, at least not until the morning he woke up and his wings had changed from ordinary brown to purest white. How could he be an Omega, the destined mate of the Alpha? There hasn’t been a true Alpha leader of the People in centuries. However, when ebon-winged Gabriel suddenly shows up and claims him as his destined mate, the attraction is instant.
When Gabriel’s brown wings suddenly change to ebony, he must accept that he is the Alpha, God-chosen leader of the angels. When he discovers his destined mate is another man, he realizes being Alpha means more change than he’d expected. And when he’s wrongly accused of committing one of the People’s most dishonorable crimes, Gabriel must fight: for his honor, for his mate, and for the survival of his People.

2. Angel's Power (MF):

Ariel doesn’t understand why her wings are changing colors. She doesn’t know why energy flickers through her and she doesn’t have time to worry about it. Demons are loose and she must help her brother lead their People.
When Suriel, the angel sorcerer, arrives and offers his help, Ariel’s immediate attraction to him confuses her. She wasn’t looking for a mate and is afraid to commit to anyone while her wings are damaged. And the demons are out there, waiting for the angels to show weakness…
Suriel doesn’t want a mate. His power is strong, but very unstable and he is terrified that he will hurt someone if he lets anyone get too close. The only reason he came to Castle Archangel is to help defeat the demons. However, Ariel, the Alpha’s sister, draws him like no other woman ever has. And when she is injured in a battle, he will do whatever it takes to take care of her.

3. Angel's Blade:

Nathaniel doesn’t want to go Castle Archangel: he’s half-human and can’t fly like the rest of his clan. Even worse, he likes guys and he’s not exactly white. That makes him an interspecies outcast, but he wants to please his dad. Once there, he meets Zeke, the angels’ sexy weapons master. Sadly, Zeke is straight and Nathaniel doesn't hit on men he can’t have.
When Zeke meets Nathaniel, his gut tells him he's met his mate, but he’s never been attracted to a guy before. Despite Nathaniel's wariness and his own fear, Zeke can't help claiming him when instinct takes over.
Unfortunately, Nathaniel isn’t ready to bond, not even when their connection sparks dormant angelic powers. However, when Zeke flies into danger, Nathaniel follows. Demons stalk their people and it will take every angel who can wield a blade to fight the evil that lurks in unexpected places.